In an alternate Feudal Era Japan, giant insects known as "Mushi" started appearing and attacking people 100 years before and since then they bring terror and death to the country. To counter the threat of the Mushi, the Shogunate establishes the City Patrol who acts under the Mushi Magistrate (Mushibugy?) to assemble warriors strong enough to fight them. The story follows Jinbei Tsukishima, a young and cheerful samurai who is the newest member of the City Patrol answering a…